Reduced-switch three-phase active power filter with one cycle control

Bala, S.; Patel, Nirav; Femandes, B.G.

doi:10.1109/pesc.2004.1355486

Cited by 10 publications

(10 citation statements)

References 15 publications

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“…A review of the topologies of AC-DC converters, such as 2L2B, used in industry for the improvement of energy quality is presented in [29]. In the studies presented in [30][31][32][33][34], the 2L2B topology is analyzed as an active shunt filter, being employed various types of control strategies in synchronous reference frame or stationary one, with different modulation techniques. A variation of the topology 2L2B shown in Figure 2a is discussed in [35][36][37] as a power hybrid filter.…”

Section: Rsc Gscmentioning

confidence: 99%

“…The operation of the GSC with 2L2B topology can be analyzed similarly to a grid-connected converter operating as an active filter, due to the isolated DC link in a back-to-back configuration [30][31][32]36,38,39]. From Figure 5, (6) is derived using Kirchhoff's Voltage Law (KVL) in each phase, furthermore, the analysis considers grid voltages to be balanced and distortion-free.…”

Section: Grid-side Converter With 2l2b Topologymentioning

confidence: 99%

“…The error, or variation, i f q , is defined in (30). Considering i f q with δb equal to zero, and i f q with δb different than zero, and substituting this assumption in (29), (31) is obtained after applying the Laplace transform.…”

Section: Dc-link Regulationmentioning

confidence: 99%

See 2 more Smart Citations

Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter

et al. 2019

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This work aims to analyze and validate through mathematical modeling and experimental results, in a three-phase three-wire electrical system, the technical viability of a static power converter with a two-level topology with only two controlled branches (2L2B), operating as a grid-side converter (GSC) in a wind turbine generator based on a doubly fed induction generator (DFIG). With this reduced-switches topology, the GSC is able to regulate the DC-link voltage level from the generator back-to-back converter and provide ancillary services of harmonic filtering and reactive power compensation from linear/nonlinear loads connected to the point of common coupling. An 8-kVA experimental prototype was implemented in the laboratory to validate the proposal. The prototype control system was realized using the dSPACE DS1103 PPC Controller Board platform programmed via MATLAB/Simulink. The effectiveness of the proposed system is verified by comparing the results obtained with the 2L2B topology to the ones with the usual two-level three-branch topology.

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Section: Rsc Gscmentioning

confidence: 99%

Section: Grid-side Converter With 2l2b Topologymentioning

confidence: 99%

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Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter

et al. 2019

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“…The difference of real power will result in the voltage variation of dc capacitor. Since the utility power factor is desired to be close to unity after compensation by the proposed power filter, the difference of real power can be represented as (10) where is the demanded real power of load. If is negative, it means that the supplied real power is smaller than the demanded real power, so the voltage of the dc capacitor will be reduced.…”

Section: Three-phase Three-wire Active Power Filtermentioning

confidence: 99%

“…However, the cost is higher than other methods. Conventionally, a three-phase three-wire APF, comprising a three-arm power converter or a two-arm power converter with split capacitors, is used to compensate for the harmonic currents in the three-phase three-wire distribution power system [10]- [12]. In contrast, a three-phase four-wire APF, comprising a four-arm power converter or a three-arm power converter with split capacitors, is used to compensate for the harmonic currents in the three-phase four-wire distribution power system.…”

Section: Introductionmentioning

confidence: 99%

A Three-Phase Four-Wire Power Filter Comprising a Three-Phase Three-Wire Active Power Filter and a Zig–Zag Transformer

Jou

et al. 2008

IEEE Trans. Power Electron.

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Active power filters (APFs) have been developed to solve the problems of harmonic suppression and reactive power compensation simultaneously. In this paper, a three-phase fourwire power filter comprising a three-phase three-wire APF and a Zig-Zag transformer is developed. A hardware prototype is implemented and tested to verify the performance of the proposed power filter under various ideal and non-ideal power conditions. Experimental results show that this three-phase four-wire power filter has the desired performance under limited zero sequence utility voltage.

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Three‐level hysteresis current control strategy for three‐phase four‐switch shunt active filters

Biricik

Kömürcügil

2016

IET Power Electronics

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In this study, a three-level hysteresis current-control (HCC) strategy is proposed for three-phase four-switch shunt active power filters. The four-switch topology which utilises four switching devices together with two series connected capacitors is able to reduce the cost, switching losses and improve the reliability of system. In this topology, when the current control of phases A and B is achieved successfully, the current control of phase C which is connected to the midpoint of the series connected capacitors is achieved automatically. The current control is achieved by using a three-level HCC strategy. An important consequence of using this control strategy is that it enables access to the zero level of the input voltage of active filter so that a switching device is only switched when the current error is negative, while it remains off when the current error is positive. Furthermore, the imbalance in the capacitor voltages is eliminated by adding a feedback term (the difference in the capacitor voltages multiplied by a suitable gain) to the current control. The proposed control strategy offers a reduced switching frequency, losses and cost. The steady-state and dynamic performance of the proposed control strategy is verified through simulations and experimental studies.

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Reduced-switch three-phase active power filter with one cycle control

Cited by 10 publications

References 15 publications

Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter

Providing Ancillary Services with Wind Turbine Generators Based on DFIG with a Two-Branch Static Converter

A Three-Phase Four-Wire Power Filter Comprising a Three-Phase Three-Wire Active Power Filter and a Zig–Zag Transformer

Three‐level hysteresis current control strategy for three‐phase four‐switch shunt active filters

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